Monthly Archives: March 2012

2012 ENVI User Group: Public Data, Remote Sensing, & Invasive Plant Species

Posted on March 27, 2012 by Cherie Darnel

At the 2012 ENVI User Group, Jim Alford, California Department of Fish and Game, presented “Conversion of a Heads Up Digitizer”.  This presentation focused on the use of public domain remotely sensed data to predict Taeniatherum caput-medusae (medusahead) infestations, and … Continue reading →

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2012 ENVI User Group: COSI-Corr User Presentations

Posted on March 20, 2012 by Cherie Darnel

At the 2012 ENVI User Group, Sebastien Leprince, California Institute of Technology, will be presenting “COSI-Corr: Principles of Sub-Pixel Correlation” and Francois Ayoub, California Institute of Technology, will be presenting “COSI-Corr: Application of Sub-pixel Correlation for Change Detection”. An orthorectified … Continue reading →

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Delivering Imagery to Mobile Devices

Posted on March 13, 2012 by Kate Heightley

As the level of interest in tactical use of mobile devices increases, so does the desire to provide timely geospatial imagery.  Take, for example, a disaster scenario like Hurricane Katrina.  First responders needed information such as the locations and boundaries … Continue reading →

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More Geospatial Terminology Confusion

Posted on March 6, 2012 by Peg Shippert

I was recently asked to clarify the difference between a coordinate system and a map projection.   This can be confusing, especially because some geospatial software (e.g., ENVI) handles unprojected coordinate systems exactly the same way that it handles map projections, … Continue reading →

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